A car wash, or auto wash, is a facility used to clean the exterior, and in some cases the interior, of cars. Car washes can be self-service, full-service (with attendants who wash the vehicle), or fully automated (possibly connected to a filling station). A car wash is like a shower–for your car. Wash your car, then wash the window. And then you go to work and start over. Never underestimate the power of a good car wash.Use brushes and power washing equipment to clean the exterior of vehicles. Dry and wax the exterior of vehicles after cleaning. Vacuum and shampoo car interior, including floor mats and seats. Clean windshield and windows. Check fluid levels.